问题描述
现在我终于在 Binance 中切换到 websocket,我不能再像以前使用旧脚本那样解析响应中的数据。我在 Google Apps 脚本中使用 Javascript
function balanceBinance() {
var key = '';
var secret = '';
var curTime = Number(new Date().getTime()).toFixed(0);
var string = "type=SPOT×tamp=" + curTime;
var sKey = Utilities.computeHmacSha256Signature(string,secret);
sKey = sKey.map(function(e) {
var v = (e < 0 ? e + 256 : e).toString(16);
return v.length == 1 ? "0" + v : v;
}).join("");
var params = {
'type':'SPOT','method': 'GET','headers': {'X-MBX-APIKEY': key},'muteHttpExceptions': true
};
var url = "https://api.binance.com/sapi/v1/accountSnapshot?" + string + "&signature=" + sKey;
var data = UrlFetchApp.fetch(url,params);
var data = JSON.parse(data.getContentText());
var data = data.snapshotVos;
Logger.log(data);
}
它返回:
[{data={totalAssetofBtc=0.0000117,balances=[{free=0.0000117,asset=BNB,locked=0},{asset=BTC,locked=0,free=0.00000093},{free=0.00026,asset=BTCDOWN,{locked=0,free=0.00,asset=EUR},{asset=USDT,free=0.06716916}]},type=spot,updateTime=1.622851199E12},{updateTime=1.622937599E12,data={totalAssetofBtc=0.0000117,balances=[{asset=BNB,free=0.0000117},asset=BTC,free=0.00026,asset=BTCDOWN},free=0.34585555,{free=0.06716916,asset=USDT}]},type=spot},{type=spot,updateTime=1.623023999E12,data={balances=[{locked=0,{asset=BTCDOWN,free=0.00026},{free=0.34585555,{free=411.06716916,asset=USDT}],totalAssetofBtc=0.11298258}},{updateTime=1.623110399E12,data={balances=[{free=0.0000117,asset=BNB},{asset=ETHDOWN,free=0.00376,asset=EUR,{free=0.40578148,totalAssetofBtc=0.0000117}},{data={totalAssetofBtc=0.0000117,{free=0.00000093,{free=0.00376,asset=ETHDOWN,updateTime=1.623196799E12}]
在以前版本的脚本中,我能够使用以下代码为任何相应的资产提取免费参数:
var data = data.filter(function (el) {
return el.free > 0;
});
var i;
for (i=0; i < data.length; i++) {
var asset = data[i].asset;
var free = data[i].free;
if (free < 1) {var a = parseFloat(free); var a = a.toFixed(8); var free = parseFloat(a);}
if (free > 1 && free < 10) {var a = parseFloat(free); var a = a.toFixed(4); var free = parseFloat(a);}
if (free >=10) {var a = parseFloat(free); var a = a.toFixed(2); var free = parseFloat(a);}
var row=rows.indexOf(asset)+2;
if (row>0){
sheet.getRange(row,13).setValue(free);}
}
解决方法
你的JSON结构是这样的
snapshotVos = [
{ data: { balances: [{asset,free},{asset,free}] } },{ data: { balances: [{asset,free}] } } ]
示例代码:
function parseJson() {
var sampleJson ={msg:'',snapshotVos:[{updateTime:1.622851199E12,data:{totalAssetOfBtc:0.10958809,balances:[{asset:'BNB',free:0.0000,locked:0},{asset:'BTC',locked:0,free:0.00000093},{asset:'BTCDOWN',free:0.00026,{free:2981.34585555,asset:'EUR',{free:411.06716916,asset:'USDT',locked:0}]},type:'spot'},{data:{balances:[{asset:'BNB',free:0.0000117},free:0.00026},{locked:0,free:2981.34585555,asset:'EUR'},{asset:'USDT',free:411.06716916,locked:0}],totalAssetOfBtc:0.11403012},updateTime:1.622937599E12,type:'spot'}],code:200.0};
var sampleJsonStr = JSON.stringify(sampleJson);
var data = JSON.parse(sampleJsonStr);
var balances = []
data.snapshotVos.forEach( snap => {
balances.push(snap.data.balances);
});
Logger.log(balances);
Logger.log(balances.flat());
var data = balances.flat().filter(function (el) {
return el.free > 0;
});
Logger.log(data);
for (i=0; i < data.length; i++) {
var asset = data[i].asset;
var free = data[i].free;
Logger.log("asset: "+asset+" "+"free: "+free);
}
}
它有什么作用?
- 我根据您的示例数据创建了一个 JSON 对象,使用 JSON.stringify() 将其转换为字符串,然后使用 JSON.parse() 将其转换回 json 对象
- 我将
data.balances array
中的所有snapshotVos array
合并为一个balances array
。我使用 array.flat() 将二维数组更改为一维数组,然后根据您给定的条件对其进行过滤。 -
data
变量应该已经与您的 for 循环匹配。